The short version
Only one company currently supplies this market — there is no backup if it stumbles.
The numbers behind every sentence are on this page below — and the Watch button emails you when any of them move.
dextromethorphan hydrobromide, guaifenesin, doxylamine succinate · Kit · Haleon US Holdings LLC
NDC 00031-2103-01 · 1 KIT in 1 CARTON * 1 BOTTLE in 1 CARTON / 118 mL in 1 BOTTLE * 1 BOTTLE in 1 CARTON / 118 mL in 1 BOTTLE · OTC MONOGRAPH DRUG · View full market →
Only one company currently supplies this market — there is no backup if it stumbles.
The numbers behind every sentence are on this page below — and the Watch button emails you when any of them move.
Medicare Part D does not cover over-the-counter drugs — by law it pays only for products requiring a prescription.
How Part D pricing works →No NADAC pricing on file for this NDC — NADAC covers drugs dispensed by retail community pharmacies.
Not scored — fragility is computed for NADAC-priced NDCs.
No FDA shortage reports for this drug or its presentations.
No enforcement reports list this package NDC.
| Labeler | Strength | First seen | Last seen |
|---|---|---|---|
| Haleon US Holdings LLC | Jul 15, 2026 | Sep 2, 2026 |
Roster from daily NDC Directory diffs — first/last seen dates start July 2026.
DrugDashboards, "Robitussin Day and Night Maximum Strength Cough DM — NDC 00031-2103-01," retrieved September 3, 2026, https://drugdashboards.com/drug/00031210301.
Free to cite with attribution — see how the data is put together.